Buggy code:
public class MenuPanel extends JPanel { private JLabel lblTitle ; private JPanel buttonPanel ; private JButton btnStart ; private JButton btnLoad ; private JButton btnHelp ; private JButton btnExit ; private MainFrame parent ; public MenuPanel ( MainFrame parent ) { } private void initialize ( ) { } private void addListeners ( ) { final MenuPanel menu = this ; btnStart . addActionListener ( new ActionListener ( ) { final class SurveyWrapper { public String name ; public Survey survey ; public SurveyWrapper ( Survey survey ) { } public String toString ( ) { return name ; } } public void actionPerformed ( ActionEvent e ) { try { Survey [ ] surveys = Parser . readAll ( new File ( ".//assets" ) ) ; SurveyWrapper [ ] wrapped = new SurveyWrapper [ surveys . length ] ; for ( int i = 0 ; i < ( surveys . length ) ; ++ i ) { wrapped [ i ] = new SurveyWrapper ( surveys [ i ] ) ; } SurveyWrapper selected = ( ( SurveyWrapper ) ( JOptionPane . showInputDialog ( parent , "Select<seq2seq4repair_space>a<seq2seq4repair_space>survey:" , "Choose<seq2seq4repair_space>a<seq2seq4repair_space>Survey" , JOptionPane . PLAIN_MESSAGE , null , wrapped , wrapped [ 0 ] ) ) ) ; if ( selected == null ) return ; parent . addContent ( new SurveyPanel ( parent , selected . survey ) ) ; } catch ( IOException ex ) { <START_BUG> Util . showError ( "Could<seq2seq4repair_space>not<seq2seq4repair_space>read<seq2seq4repair_space>the<seq2seq4repair_space>surveys.<seq2seq4repair_space>Make<seq2seq4repair_space>sure<seq2seq4repair_space>there<seq2seq4repair_space>are<seq2seq4repair_space>surveys<seq2seq4repair_space>in<seq2seq4repair_space>the<seq2seq4repair_space>assets<seq2seq4repair_space>folder<seq2seq4repair_space>of<seq2seq4repair_space>this<seq2seq4repair_space>program." ) ; <END_BUG> ex . printStackTrace ( ) ; } } } ) ; btnLoad . addActionListener ( new ActionListener ( ) { public void actionPerformed ( ActionEvent e ) { File f = Util . chooseFile ( "Load" , TXT_FILTER ) ; if ( f != null ) try { parent . addContent ( new SurveyPanel ( parent , Parser . readSurvey ( f ) ) ) ; } catch ( IOException e1 ) { Util . showError ( ( "Could<seq2seq4repair_space>not<seq2seq4repair_space>read<seq2seq4repair_space>file<seq2seq4repair_space>" + ( f . getAbsolutePath ( ) ) ) ) ; e1 . printStackTrace ( ) ; } catch ( IllegalArgumentException ex ) { return ; } } } ) ; btnHelp . addActionListener ( new ActionListener ( ) { public void actionPerformed ( ActionEvent e ) { } } ) ; btnExit . addActionListener ( new ActionListener ( ) { public void actionPerformed ( ActionEvent e ) { if ( Util . showConfirm ( "Are<seq2seq4repair_space>you<seq2seq4repair_space>sure<seq2seq4repair_space>you<seq2seq4repair_space>want<seq2seq4repair_space>to<seq2seq4repair_space>exit?" ) ) System . exit ( 0 ) ; } } ) ; } }

Fix:
Util . showError ( ( ( "Could<seq2seq4repair_space>not<seq2seq4repair_space>read<seq2seq4repair_space>the<seq2seq4repair_space>surveys.<seq2seq4repair_space>Make<seq2seq4repair_space>sure<seq2seq4repair_space>there<seq2seq4repair_space>are<seq2seq4repair_space>surveys<seq2seq4repair_space>in<seq2seq4repair_space>the<seq2seq4repair_space>" + ( new File ( ".//assets" ) . getAbsolutePath ( ) ) ) + "<seq2seq4repair_space>folder<seq2seq4repair_space>(in<seq2seq4repair_space>the<seq2seq4repair_space>same<seq2seq4repair_space>folder<seq2seq4repair_space>as<seq2seq4repair_space>this<seq2seq4repair_space>program." ) ) ;